The species is native to the northeastern Democratic Republic of the Congo where it is known from the Garamba National Park.

[1][2] It is named after Robert F. Inger, an American zoologist from the Field Museum of Natural History.

The shared characteristics of this group are reduced toe webbing, sacral folds on the back, and metatarsal tubercles on the feet.

[5] P. ingeri occurs in open and wooded humid savanna in association with marshes and temporary as well as permanent waterbodies, including streams.

Population trends of P. ingeri are unknown, but it occurs in an area of low human impact and is unlikely to face significant threats.